Articles tagged with Biocontrol
Researchers discover new wasp species, Chlorocytus papahemii, in China that controls the weevil beetle Lixus subtilis, a major sugar beet pest. The newly discovered wasp has a unique behavior of attacking another wasp species that preys on the weevil.
Researchers explored how AI and metabolic modeling can inform effective biocontrol strategies to combat antimicrobial resistance in built environments. Microbial biocontrol using 'good' microbes has shown promise, but inconsistent outcomes are due to various factors, including genetic differences and environmental stressors.
Researchers aim to strengthen the fight against plant-parasitic nematodes by identifying weak points in their life cycle and developing gene-edited soybean varieties that prevent nematode exploitation. The goal is to maintain normal plant function while preventing nematode infection.
Researchers have developed a biopolymer that encapsulates the fungus Beauveria bassiana, increasing its viability from 69% to 85% after five months of storage. The biopolymer, made from carboxymethylcellulose and aluminum, provides a more sustainable alternative for releasing the bioinsecticide.
Bionema Group Ltd, a Swansea University spin-out, has received the second King's Award for Enterprise: Sustainable Development. The company develops biological pest control and sustainable agriculture technologies, providing environmentally sustainable alternatives to synthetic pesticides.
Scientists at KTH Royal Institute of Technology have discovered a new way to fight potato late blight, a plant disease that once triggered the Irish Potato Famine. The peptide CS5 specifically attacks Phytophthora infestans without harming other plants.
Researchers discovered a combination of Ty-1/Ty-3 and Ty-6 resistance genes in tomato plants provides highly robust protection against begomoviruses. Integration of fewer resistance genes than expected can enhance resistance, offering a promising approach for improving tomato varieties while balancing productivity and fruit quality.
A recent study published in Frontiers in Plant Science found that beneficial nematodes, including predatory nematodes, play a crucial role in regulating pest populations in tropical soils. The research shows that these natural allies can suppress harmful plant-parasitic nematodes, leading to improved crop yields and reduced losses.
A recent study by Chiba University researchers found that moths can detect the ultrasonic pulse rates emitted by bats, which triggers distinct escape responses. The findings suggest that certain pulse rates signal high predation risk, causing moths to avoid flying and even stop reproduction.
The reed leafhopper hosts at least seven species of bacteria, with three being essential for its nutrition. The insect transmits plant diseases SBR and stolbur, causing massive crop failures in sugar beet and potato production.
Researchers at UT Austin discovered that destroying ant nest structure prevents disease transmission, allowing natural pathogens to collapse infestations. The study's findings provide a reliable way to introduce biocontrol agents into uninfected colonies, making it easier to control the invasive species.
Researchers discovered an accidentally introduced parasitoid, Eriborus sp., which is helping to control the box tree moth pest. Parasitism rates were highest in wild stands, reaching 68% in Germany and 32% in Switzerland.
Scientists have found that a tiny worm uses static electricity to jump high into the air and attach to flying insects, with a charge of hundreds of volts initiating an attractive force. The researchers used experiments to investigate how electrostatic forces affect the success rate of nematodes connecting with insects.
Researchers have discovered that the same beneficial bacteria occur in pollen stores of honeybee colonies and on nearby plants, producing compounds that kill pathogens of bees and plants. These endophytes can be used to develop new treatments for crops and hives.
A new study warns that field-evolved resistance to Bacillus thuringiensis and RNA interference is undermining the effectiveness of corn targeting rootworms with these biotech controls. The researchers advise using integrated pest management strategies, including crop rotation and planting conventional corn refuges.
A review article highlights the prevalence of aflatoxins in livestock feed and their residues in food products in Pakistan. The study emphasizes the urgent need for aflatoxin control strategies to mitigate adverse health effects on both livestock and human health, including genotoxicity, hepatotoxicity, and carcinogenicity.
A meta-analysis from the University of Copenhagen shows that flower strips with at least two sown species increase the number of natural enemies by an average of 70 percent. This is due to the diverse range of flowers attracting a broader range of beneficial insects, such as ladybirds and hoverflies.
New research from the University of the Witwatersrand finds that puff adders can increase their food consumption by up to 12 times during rodent outbreaks, outperforming traditional mammalian predators. This natural solution could significantly reduce crop damage and support sustainable farming practices in Africa.
Bumblebees closer to honeybee hives are more likely to attract voracious wax moths, resulting in lower reproductive output and weaker immune response. Conservationists and beekeepers should avoid placing apiaries in areas with high pollinator biodiversity or declining bumblebee populations.
Rising temperatures and increased trade enable pests to spread globally, intensifying agriculture weakens natural pest control. Crop losses exceed 40% due to pest and disease impacts, necessitating urgent action for climate-smart management strategies.
A new review emphasizes the importance of integrated pest management (IPM) in combating fall armyworm, which poses a significant threat to Asian rice production. Effective IPM approaches include biological control measures, cultural practices, and judicious use of insecticides.
Scientists at the University of Florida have developed a genetically edited citrus tree that produces a protein killing baby Asian citrus psyllids, which transmit the greening disease. The approach has shown promise in controlling the spread of HLB, but adult psyllids remain a challenge.
Researchers at Macquarie University have developed a revolutionary new biological pest control method called the Toxic Male Technique (TMT). This approach genetically engineers male insects to produce insect-specific venom proteins in their semen, significantly reducing female lifespan and disease transmission.
Researchers have discovered two Antarctic actinomycete strains with strong antifungal properties against the fungus causing banana wilt. The strains, Streptomyces polyrhachis and Streptomyces fildesensis, showed effective inhibition of Fusarium oxysporum growth, making them potential biocontrol agents for sustainable disease management.
Researchers found that the presence of a fungus increases the pH of the soil, promoting growth of beneficial bacteria. This interaction could lead to sustainable agricultural practices by harnessing microbial interactions to combat plant diseases.
Research reveals biological control generates 'desirable outcomes' within all One Health dimensions, mitigating global issues like chemical pollution, biodiversity loss, and habitat destruction. Biological control can reduce airborne pollen concentrations by >80% and annual health costs by €1.1 billion.
A research team discovered that the Rickettsia symbiont induces cytoplasmic incompatibility (CI) in the mirid bug, affecting its reproductive biology. This finding has significant implications for effective pest management and highlights the importance of assessing CI frequency in wild populations.
Beneficial bacteria like Bacillus subtilis possess memory and express genes associated with colonization and symbiosis for generations after being detached from their host. This multigenerational inheritance stabilizes interactions with their host, enabling efficient recolonization.
Researchers discovered that crown-of-thorns starfish larvae feed on Trichodesmium bacteria, a toxic and nutrient-poor food source. This finding may contribute to the increase in COTS populations devastating coral reefs worldwide.
A recent study finds semi-natural habitats play a crucial role in conserving pollinator diversity, outpacing the impact of pesticide use. The research suggests that prioritizing habitat conservation can be more effective than reducing pesticide application in rice fields.
Researchers at Osaka Metropolitan University discovered that mycoviral infections can increase the sensitivity of oomycete plant pathogens to specific fungicides. This finding could lead to innovative approaches for controlling plant diseases and reducing chemical treatments.
Mithila Jugulam has been appointed Co-Editor-in-Chief of Pest Management Science, bringing expertise in weed physiology and molecular biology. She aims to foster interdisciplinary collaboration and innovation, while maintaining the journal's commitment to scientific rigor and editorial integrity.
Researchers optimized the release pattern of Telenomus podisi, a parasitoid wasp that neutralizes the Brown stink bug, for effective biological control in soybean crops. By analyzing the dispersal range and releasing points, they found that intervals of 30 m can assure sufficient control of stink bugs.
A new study found that removing hedgerows and field margins decreases the diversity and abundance of arthropods, which can lead to reduced natural pest control. The research suggests that using flowering plants in field margins and implementing agri-environmental measures can be effective ways to increase farmland biodiversity.
A parasitic wasp has evolved to perfectly target a common fruit fly pest, demonstrating key principles of ecologically driven evolution. The Trichopria drosophilae wasp overcomes the pest's defenses by producing venom and specialized cells that speed up digestion and increase nutrition for its young.
Researchers at INRAE discovered that female sex pheromones can remotely modulate the circadian rhythm of males in the African cotton moth, Spodoptera littoralis. This finding paves the way for exploring biocontrol methods targeting the pest.
Research found that organic farming significantly affects pesticide use in neighboring fields, with benefits for both organic and conventional farmers. Clustering organic fields together can provide the most benefits by concentrating pest control benefits to organics and reducing costs to conventional fields.
Research finds pythons convert feed into weight gain efficiently compared to conventional livestock like chickens and cattle. Pythons outperform mainstream agricultural species in terms of food and protein conversion ratios.
Scientists have identified two fungi, Beauveria pseudobassiana and Metarhizium brunneum, with high insecticidal activity against the Eucalyptus snout beetle. These naturally occurring pathogenic fungi could be used to develop a bio-pesticide for controlling the beetle in forest plantations.
A new study found that creating physical gaps in the forest canopy improves the health and growth of eastern hemlocks infested with the woolly adelgid, a highly invasive insect. By giving the trees better access to resources like water and nutrients, canopy gaps may help them 'outgrow' the insect's impact, at least temporarily.
Researchers found that introducing flowering components, aromatic ground covers, and extensification in orchard management increased natural enemies' abundance and decreased pest insects. Ground covers had the most positive effects on predators, while promoting floral resources and ecosystem-friendly strategies can reduce pesticide use.
A new study found that Kenyan smallholder papaya farmers are willing to adopt biological control methods to combat the papaya mealybug. Farmers demonstrated high levels of awareness of the negative impacts of chemical pesticides, but lacked knowledge and support for biological control.
A new study by CABI confirms the Samurai wasp has minimal impact on native stink bugs, with most non-target species being less parasitized. However, some species with unusual life cycles may face increased risk of parasitism. The study assessed the realized host range of the Samurai wasp and found it to be broader than initially thought.
Scientists have discovered an ancestral olfactory receptor in the Egyptian cotton leafworm that recognizes the female sex pheromone blend. This finding may lead to the development of new biocontrol methods by targeting specific receptors and blocking pheromone activation.
A team of researchers from the University of Córdoba discovered that the entomopathogenic fungus Metarhiziumbrunneum increases iron acquisition in melon and cucumber plants. The fungus induces two main iron acquisition genes, making plants more efficient at absorbing iron from the soil.
The parasitoid Eiphosoma laphygmae is likely to be the best classical biological control from the Americas against the devastating fall armyworm pest, according to a review by CABI scientist Dr. Marc Kenis. This natural enemy of the pest has been found to have high specificity and importance in most native ranges.
Researchers have discovered licorice leaf extract as a potent bactericide and fungicide, offering a sustainable alternative to synthetic pesticides. The extract modulates plant immune responses to pathogens and acts against resistant oomycetes, making it a potential solution for naturally controlling plant diseases.
Researchers developed new spiro-pyrazolo quinazoline derivatives with reduced bee toxicity without compromising insecticidal activity. The compounds showed promising results, including one compound with an LD50 value three to four orders of magnitude lower than fipronil.
Scientists have identified horizontally transferred genes in insect genomes as valid targets for selectively killing green peach aphids and whiteflies. Silencing these genes using RNA interference reduces pest survival by up to 40%, with potential expansion to other insects through 'stacking' multiple targets.
A study analyzed the potential of a bacterium to combat coffee rust, a major challenge for Brazilian coffee growers. The researchers found that the bacterium produces antibacterial and antifungal compounds, as well as proteins associated with protection against water stress, making it a promising candidate for biological control.
Scientists from the University of Johannesburg identified ten times more volatile signal compounds from the bacteria, boosting plant growth and protection. Rhizobacteria can protect crops from abiotic and biotic stresses by producing valuable VOCs that trigger Induced Systemic Resistance (ISR) in plants.
Researchers at FAU aim to empower amputees to maximize their individual potential for controlling the full dexterity of artificial hands using a novel bimodal skin sensor and machine learning algorithms. The project will develop customized prosthetic sockets and training programs to overcome limitations with current sensing technology.
Research found that native predatory fish like jacks and barracuda feed on Australian mullet, an invasive species introduced to Oahu waters. This shift in diet helps control the invasive mullet population, which competes with native fish for resources.
Predatory mosquito larvae employ two distinct methods to capture prey: one involves a harpoon-like head-propulsion action, while the other uses a sweeping tail to snare insects. This new research provides insight into the behavior of these tiny predators and their ability to feed on other aquatic insects.
Researchers have isolated a new fungus, Beauveria caledonica, that can be used for biological control of banana borers and Fusarium wilt, two major threats to tropical and subtropical crops. The fungus produces a secondary compound called oosporein, which intensifies its action against the disease.
Researchers discover that male spotted lanternflies are strongly attracted to the smell of honeydew produced by male conspecifics, emitting specific sex-attractant profiles. This finding may lead to the development of new pest management tools to reduce the population and spread of this invasive species.
UC Riverside scientists are working with Jocelyn Millar to find the avocados weevil pheromone, which could be used to monitor pests and prevent them from mating in orchards. The goal is to reduce damage to fruit and enable growers to use less insecticides.
A recent study by Xi'an Jiaotong-Liverpool University provides a method to help farmers and policymakers decide whether organic farming is beneficial for the environment. The researchers analyzed international studies to find a threshold where organic farming's biodiversity gain outweighs its land requirements.
A team of researchers developed a mathematical model to simulate the impact of gene drives on mammal populations at a landscape scale. The X-shredder drive has been shown to potentially eradicate mice, rats, and rabbits, but with varying probabilities of success and eradication times ranging from 18 to 48 years.
The Canadian Food Inspection Agency has granted permission for Aceria angustifoliae, a shoot-and-flower-attacking eriophyid mite, to be released in Canada under the authority of the Canadian Plant Protection Act. The mite is expected to help control Russian olive's aggressive spread and was assessed as having a very narrow host range.